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The UK's leading breeder of Japanese Koi Carp

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Breeding The Finest Koi In The UK

We've won hundreds of awards over the years against some of the finest Japanese imported Koi.

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Colombo Alparex 1000ml
Colombo Alparex 1000ml £59.99 £67.00
Alparex is effective against invisible parasites that cause a greyish bloom on fish, such as Ichtyobodo, Chilodinella and Trichodina. In addition, White spot and Fungus are effectively treated as well. Effective against: Invisible parasites White Spot disease Fungus Water quality: For an optimal effect of the treatment and for a quick recovery of the diseased fish, a good water quality is essential. Hence, always test the water quality before and after the treatment, and correct when necessary. The KH-value is especially important as this should be between 6 and 8°DH, before the treatment is started. Dosage: Alparex has to be administered in two steps: 1st day: 1 ml per 40 litres of pond water, being 25 ml per 1.000 litres of pond water.  2nd day: again 1 ml per 40 litres of pond water, being 25 ml per 1.000 litres of pond water. A measuring cup is included in the box. Sturgeons may have a reduced tolerance to Alparex in some cases, but their hard skin also makes them less susceptible to the parasites that Alparex treats against. We thus recommend that you do not treat sturgeon together with the other fish, but instead treat them separately with only half the dose (two times 1 ml per 80 litres of pond water instead of the usual two times 1 ml per 40 litres). If needed, a third dose on the third day can be administered. Measure the necessary amount in the measuring cup and mix with water in a watering can or a bucket. Distribute evenly over the pond. Remove carbon and zeolite during treatment; UV-lamps and ozone should be switched off during 1 week after the last administration. Warning: Alparex cannot be used in combination with Flubendazole or related substances. Wait at least 4 weeks and change at least 25% of the water before using Alparex if the pond has been treated with Flubendazole or related substances. As far as known, this product is harmless to aquatic creatures such as frogs, salamanders, freshwater lobsters and snails. In case you have either positive or negative experiences, please notify us via www. colombo.nl or Email: info@colombo.nl Only for use on ornamental pond fish.Keep out of reach of children. Store in the box at a temperature of 4 to 32°C. Do not inhale. Prevent contact with the skin and eyes. If swallowed, immediately consult a physician and show package or label. This product causes permanent stains on clothing, paving materials, etc. Combinations: Between the use of Morenicol Alparex and Colombo Algadrex, Lernex, Cytofex or FMC-50, there has to be a waiting period of minimal 2 weeks. Combinations with other products is strictly at your own risk! 1000ml bottle will dose 20,000 litres 
Colombo Lernex Pro 1000ml
Colombo Lernex Pro 1000ml £69.99 £79.00
Lernex® Pro is an optimised version of Morenicol Lernex, developed for the treatment of resistant skin and gill worms in ornamental fish. Lernex® Pro is based on the latest scientific knowledge and contains high-quality anthelmintics against which no resistance has yet built up. Lernex® Pro is therefore highly effective in the treatment of resistant skin and gill flukes. The presence of these parasites can only be determined under a microscope. Effective against: Resistant worms (flukes) Skin Worm Gill Worm Water quality: For an optimal effect of the treatment and for a quick recovery of the diseased fish, a good water quality is essential. Hence, always test the water quality before and after the treatment, and correct when necessary. Dosage: 1 ml (1.25 g) per 20 litres of pond water. The required amount of Lernex Pro can be measured using the 15 ml measuring spoon supplied (18.75 g). This amount should be slowly poured into the pond water in a place with a strong current, e.g. the outlet of the pump or filter. Ensure good aeration so that your fish have sufficient oxygen at all times. Do not filter through charcoal or zeolite; keep UV lamps and ozone devices switched off for up to 1 week after administration. This veterinary medicine must not be overdosed; adhere to the dosage instructions. The eggs of the worms are not killed by this veterinary medicine. Therefore, the treatment should be repeated after 14 days to kill these larvae and prevent reinfection. This 14-day period is not dependent on the water temperature. 1000ml bottle will dose 20,000 litres 
Cloverleaf Blanket Answer - ALL SEASON
Cloverleaf Blanket Answer - ALL SEASON from £21.99
Blanket Answer All Season is a unique formula which succeeds where many commercial bacteria cultures will fail. No need to switch off UV. Blanket Answer All Season is safe for all pond fish, plants and biological filtration systems. 800 gram bottle will treat ponds up to 10,000 litres. 4kg tub will treat ponds up to 50,000 litres.
Shiro Bekko - 21cm REF:70403
Shiro Bekko - 21cm REF:70403 £75.00
DOB: 2025 Sex: Male Bloodline: Sakai   This fish has been spawned from high-quality Japanese parents. Cuttlebrook Koi Farm has been breeding and growing Koi at their farm since it was first built in 1990. Over the years they have developed a reputation for producing the finest quality Nishikigoi.
Shiro Utsuri - 24cm REF:70402
Shiro Utsuri - 24cm REF:70402 £75.00
DOB: 2025 Sex: Male Bloodline: Omosako Panda Jr   This fish has been spawned from high-quality Japanese parents. Cuttlebrook Koi Farm has been breeding and growing Koi at their farm since it was first built in 1990. Over the years they have developed a reputation for producing the finest quality Nishikigoi.

Koi For Sale

We have been breeding and growing Koi at our farm since we first built it in 1990 and over the years have developed a reputation for producing the finest quality Nishikigoi.

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Koi Food

We provide a large selection of high-quality fish food suitable for Koi, Carp and other pond fish. Our food range varies from high-quality growth pellets to Koi Treats such as River Shrimp.

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Small Koi

We have a wide range of Small Koi with vibrant colours and patterns. These small Koi for sale are the perfect choice for both experienced Koi hobbyists and beginners.

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A Range Of Varieties

We breed a number of varieties of Koi each year and use our many years of experience to select the very best.

Hundreds Of Awards

We breed the finest Koi (Nishikigoi) in the UK and have won hundreds of awards for their owners over the years.

Online Or In-Person

You can buy the Koi we breed direct from us by visiting our farm in Oxfordshire, or you can order online.
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